End bar support for tension type frameless window screens



Oct. 10; 1950 D. J. RUST El'AL 25, END BAR SUPPORT FOR TENSION TYPE FRAMELESS WINDOW SCREENS 7 Original Filed Jan. 15, 1948 INVENTORS David J Rusi Jack JzZJnsen mi, rwwi/ A TTO R N EYS Patented Oct. 10, 1950 2,525,149 END BAR. SUI-FORT FOR TENSION TYPE FRAMELESS} WINDOW' SCREENS David. Jordan Rust and Jack H. Jensen, San LeandropGalif, assignors to Ry-Lock Company, Ltd-., SanLea-ndro, Calif., a corporation. of. Calif ornia firiginalapplication January 13, 1948, Serial No. 2,077 Divided and this application November 28', 1949-, SeriarN'o. 129,842

The present invention relatesv to, and it isyan.

object to provide, a novel, end bar support for a tension type. framelesswindow screen. which in-' cludes. transverse. end. bars adapted to be secured to'a window frame with the screen under tension between said bars. '1

Another object of. the. invention is toprovide an; end bar support, forv thepurposedescribed, which includes saddle. brackets mounted. on opposite sides of. the. window frame and facing lengthwise of but. awayfrom the screen; the end bar-pro jecting atopposite endsbeyond: the adjacent edges of the screen and. resting in. the saddles: of corresponding brackets. I

A. further object of. the. invention is to provide an end bar. support which is especially adapted, but not limited, for use in cooperation with the end bar at the. top of a: tension. type frameless window screen. wherein the screen tensioning means engages the end bar at the bottom. of the,

screen.

An additional: object'- of the=inventionis to provide an. end bar support which is capable of with.- standing relatively great tensionv on theuscreen; the end-bar. which cooperates. with the: support being effectively held against escape from said support whenthe screen is under tension, and being formed to minimize outward strain on the saddlebr'ackets which are'i ncluded in the support.

It is'- also: an object citing-invention teproi/i'de an end bar support which is designed for ease and economy of manufacture, and ready installation on a window frame.

Still another object of the invention is to provide a practical and reliable end bar support for a tension type frameless window screen.

This invention is a division of application, Serial No. 2077, filed January 13, 1948, on Window Screen, which issued on March 14, 1950, as U. S. Patent Number 2,500,470.

ihe above objects are accomplishedby means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings:

Fig. l is a front elevation of a tension type irameless window screen embodying the present invention.

Fig. 2 is a side or edge elevation of the same, partly in section.

Referring now more particularly to the characters of reference on the drawings, the invention is embodied in a tension type frameless window screen which includes a rectangular section I of wire cloth having aihxed to the corresponding '1 Claim. (01. -327 2 edges thereof a transverse top bar: and a transverse: bottom. bar; indicated generally at 2: and: 3

respectively. The section I of wire: cloth, withathe bars 2-a-nd 3 aflixe'd. thereto, overlies the opening; 4 of a win-s: dowframe or casement, indicated generally a-t 5;.'

such casement including; side flanges: 6;.

The top bar'- 2 andv bottom bar 3 projectat the ends-,. as at 1,, beyondthecorresponding side: edges of the section tof wirecloth-;. the projecting ends 1 of the top bar 2 resting inl saddle:

brackets. 8-, hereinafter described in greater'detail-,.'

affixed to the side flanges 6 of the casement 5-.-

The projecting ends. I:- of the bottom bar. are normally engaged, from above: and: also on. the front. by screen tensionin'g. turns 1 affixedto the corresponding side flanges 6 and including,- ec= centric" camsz 1 :0 which bear. downward, forcefully, on; the upper: edge? of said? bottom bar 3' whenv the" turns: 8., extend downward; in: lapping: relation: thereto. In this; manner the section. I: or wire: cloth: is placed under relatively great tension; and at the same time the transverse bottom bar: 3" is held. against. outward displacement from the casement 5:.

At its: upper: edge the section I or" wire cloth. is secured to the top bar 2" in thei'followingmannert' The top bar? is ofv substantial height, and includesra longitudinal. foot. HE alongvits upper'edgei. with. a longitudinal; outwardly extending offset l2 immediately below such foot, whereby the face of said top bar 2 is offset outwardly with respect to the foot I l. The longitudinal, lower edge portion of the top bar 2 is bent inwardly and back toward the offset l2 whereby to form a holding or clamping flange l3. The upper edge portion of the screen extends up the back side of the flange I2, passes over the upper edge of the latter, and thence extends downward between said clamping flange and the front portion of the bar: this latter portion of the screen being doubled back upon itself, as shown. With this assembly, the section l and the top bar 2 are effectively secured together against accidental separation.

By bending the lower portion of the top bar 2 inwardly and back toward the offset l2, as described above, the lower edge of said top bar 2 is rounded, as at M.

The saddle brackets 8 each include a fiat, perpendicular bracket plate l5 vertically adjustably secured to the side flange 6 by a headed screw l6 which extends through a vertical slot I! in the bracket plate 15, and thence is threaded into said flange. At its lower end each bracket plate [5 is outturned, as at [8, to form a finger tab,

while the upper end of each bracket plate curves outwardly and upwardly to form a, saddle I 9 which faces upwardly.

The rounded lower edge portions 14 of the projecting ends I of the top bar 2 rest in substantially matching relation in the saddles I9; the tension imparted to section I of wire cloth by the cam turns 9 effectively holding said end portions 1 against accidental escape from said saddles.

The longitudinal foot H bearing against the top flange 28 of the easement 5 above the window opening 4 prevents or minimizes outward strain on the saddles 19 resulting from downward pull on the holding or clamping flange I3 by the highly tensioned section I wire cloth. This is a valuable feature, and assures that the saddle brackets 8 will not be sprung outwardly under, or by reason of, the tension on the section I of wire cloth.

-As the bracket plates are vertically adjustable, the screws Hi can be threaded into the side flanges 6 without the necessity of great accuracy with respect to vertical position, and the saddle brackets 8 can be readily initially adjusted up and down on said screws. Additionally, after some use, during which time the section I' of wire cloth may stretch slightly lengthwise, the saddle brackets 8 may be vertically adjusted to compensate for such stretch; i. e. adjusted so that the cam turns 9, when swung to working position, will properly tension the screen. 7

The lower edge of the section I of wire cloth is affixed to the bottom bar 3 in the same manner, as above described, as the top bar is attached.

The described support for the top bar 2, in cooperation with the projecting ends of said bar, provides a very effective and reliable structure for anchoring the upper end of a tension type frameless window screen to a window frame or casement.

From the foregoing description it will be readily seen that there has been produced such a device as substantially fulfills the objects of the invention, as set forth herein.

While this specification sets forth in detail the, present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claim.

Having thus described the invention, the following is claimed as new and useful and upon which Letters Patent are desired:

In combination with a window casement which includes a top flange above the window opening, a bottom flange below the window opening, and side flanges between the top and bottom flanges, all the flanges lying in the same vertical plane and defining 'a window opening, an upwardly opening curved saddle fixed to each side flange adjacent the upper end of the window opening, a screen supporting bar seated in the saddles and extending across between the same in the plane of the window opening, such bar having a rounded lower edge matchingly seated in the curved portions of the saddles, the front face of the bar being substantially parallel with the vertical plane of the window casement and spaced outwardly therefrom, the back face of the bar inclining from the lower curved edge of the bar toward the front face thereof, a flat foot plate connected with and oflset inwardly and upwardly from the front face of the bar and engaging the top flange of the easement in face to face relation therewith, a sheet of wire cloth fixed to the bar and extending over the back face thereof and lying against the side flanges of the window casement, and means associated with the easement and the lower end of the screen and effective to place the latter under substantial tension.

DAVID JORDAN RUST. JACK H. JENSEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 551,095 Ramsden Dec. 10, 1895 2,303,301 Milnor Nov. 24, 1942 2,380,794 Rust July v31, 19 15 FOREIGN PATENTS Number Country Date 389,615 Great Britain Mar. 23, 1933 

